Thank you for your efforts. Any chance you could get the boffins to take another look, as the thread in question is still not updating for me. For example, if I look in my post history one particular post is meant to be located here. However, when I click the link, the thread's most recent post is 24 April 2011. Nothing newer is displayed.

Edit: the moderator for that forum suggested I change my number of posts per page option. I set it to 40 from the default and I can now see the "missing" posts. Great to have a workaround but obviously there was (is?) an underlying issue.